MX-1800N (serv.man14). Section 6 - Adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 58

MX-1800N  ADJUSTMENTS  6 – 58

* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.

1) Enter the SIM 26-54 mode.

2) Select ENABLE or DISABLE with 10-key.

When disabling, set to "0" (NO).
When enabling, set to "1" (Yes).

3) Touch [OK] key.

When set to DISABLE, the menu of the user auto color calibra-
tion (automatic adjustment of printer color balance and den-
sity) is not displayed in the user program mode.

(Auto color calibration by the user (Auto color balance adjust-
ment))
Remark: This adjustment is based on the service target color bal-
ance set with SIM 67-27 or SIM 67-28. If, therefore, the above set-
tings are not properly performed, this adjustment cannot be made
properly.
1) Enter the system setting mode.
2) Enter the printer setting mode.
3) Touch the auto color calibration key.
4) Touch [EXECUTE] key.

The color patch image (adjustment pattern) is printed out.

5) Set the color patch image (adjustment pattern) printed in pro-

cedure 4) on the document table. Set the patch image so that
the light density area is on the left side.
At that time, place 5 sheets of white paper on the above color
patch image (adjustment pattern).

6) Touch [EXECUTE] key, and the copy color balance adjustment

is executed automatically. After completion of the adjustment,
the display returns to the original operation screen.

 

This adjustment must be executed in the following cases:
* When the fusing section is disassembled.
* When a paper jam occurs in the fusing section.
* When a wrinkle is made on paper in the fusing section.
* When an image deflection or image blur occurs in the paper rear

edge section.

1)

Loosen the C fixing screw.

2)

Shift the fusing paper guide in the arrow direction A or B (up
and down direction).

The standard fixing position is the center of the marking scale.
Change the position depending on the situation.
* When a wrinkle is formed on paper, change the position

upward (in the arrow direction A).

* When an image deflection or image blur occurs in the paper

rear edge section, shift the position downward (in the arrow
direction B).

 

This adjustment is required in the following cases:
* When the document size sensor section is disassembled.
* When the document size sensor section is replaced.
* When a U2 trouble occurs.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.

 

1)

Enter the SIM 41-1 mode.

0

A:

A :

x

; (1:YES 0:NO)

SIMULATION NO.26-54

ENABLING OF AUTOMATIC COLOR CALIB RATION OF PRINTER

x

0

1

OK

TEST

CLOSE

Black

Red

Blue

Yellow

A

B

A

B

0

PD SENSOR CHECK

1/1

CLOSE

SIMULATION NO.41-01

TEST

1/1

OCSW

PD1

PD2

PD3

PD4

PD5

PD6

PD7